The Comparation And Analysis Of Several Measurement Of The Distribution Pattern Of The Two Early-spring Herbs In Northeast

This paper based on Laoshan sampling survey data,and the research located in the Northeast Forestry University Maoershan Experimental Forest Farm Laoshan Plantation Experiment Station.The Chrysosplenium lectus-cochleae Kitag and Adonis amurensis are the reserch objects,which are Early-spring Herbs and are to the northeast Laoshan.The data was collected by the latest perspective mining method and the traditional measuring method,it applied engineering perspective sampling method to get the data drawings,and use the "3S" technical to treat with the scanned images and data.Finally,the plant population spatial distribution pattern type of the two Early-spring Herbs was calculated and measured by the methods like quadrat method and nearest neighborhood method,in addition,this paper used the traditional method to mesure the spatial pattern of plant populations.The results show that:the majority of the Northeast Laoshan Lin Chin-Baijiyaozi population are concentrated pattern type pattern,only a small portion of the sample is random distribution pattern and uniform pattern.From the entire five admitted to the plot and even Laoshan Lin Chin-Baijiyaozi total population pattern type,Chrysosplenium lectus-cochleae Kitag gather more consistent with the pattern of population distribution pattern type;Adonis amurensis Regel et Radde in Northeast Laoshan has more complex types of pattern,and it has the three types of pattern,and most of them are random pattern,only a very small part of the sample population showed uniform pattern.In the larger scales,the spatial distribution pattern types of the Adonis amurensis Regel et Radde population are still clumped pattern.The population patterns of natural plant populations are mainly clumped patterns.The statistical analysis showed that,the population patterns of early-spring herbs in Laoshan are clumped patterns,the reasons including distribution,spatial heterogeneity,and other environmental factors.The clumped patterns index is closely related to environmental factors. such as the transmittance,and it's negative correlation with soil pH,and it's positive correlation soil aeration of the soil capacity.spatial distribution pattern of population are closely related with the flowering ratio and its reproductive ecologyThis paper not only from the population distribution pattern types comparative analysis of the angle of the Laoshan ecology of the early-spring herbs,and the perspective sampling method,uniformity index was applied in the measuring of the spatial pattern of population, which expand the road of the development in the its measuring method.In addition,the paper also compared and analyzed the uniformity method,sampling methods,the nearest neighbor method,which are used in calculating and measuring of the spatial pattern of population,and the specific sample data are used to illustrate this.